Search results for “GFO”

Granular Ferric Oxide (Gfo) is the only chemical utilized by most reefers to reduce Phosphates (PO4). Elevated PO4 levels bring undesirable algae o...

Phosphate Adsorption Media for Fresh and Marine Aquariums Granular Ferric Oxide commonly refereed to as GFO ideally suited for filtering out phosph...

Phosphate Adsorption Media for Fresh and Marine Aquariums Granular Ferric Oxide commonly refereed to as GFO ideally suited for filtering out phosph...

  Description No sump, no problem! An ATO system designed for aquariums without sumps  New Controller programming for added protection New senso...